نتایج جستجو برای: scrotal circumference
تعداد نتایج: 27090 فیلتر نتایج به سال:
Aim of study: To investigate the effect feeding foliage leguminous trees on growth rate, semen characteristics, and sexual behavior bucks.
 Area Northeastern Mexico (23°44' N, 99°8' W).
 Material methods: Twenty-two young goat bucks were randomly allocated to one four treatment groups: 33% alfalfa hay (dry matter basis), 33%; Acacia farnesiana; Leucaena leucocephala; or Prosopis laevi...
The effects of trypanosomosis on the scrotal circumferences and semen characteristics of Yankasa rams were studied for ninety eight days (14 weeks). Sixteen Yankasa rams aged between 24 to 30 months and weighed between 22 to 25 kg were acclimatized for a period of two months in a clean flyproof house and were adequately fed and given water ad libitum. Of the sixteen rams, twelve that were clini...
The objectives of this study were to estimate heritability for scrotal circumference (SC) and semen traits and their genetic correlations (rg) with birth weight (BRW). Semen traits were recorded for Line 1 Hereford bulls (n = 841), born in 1963 or from 1967 to 2000, that were selected for use at Fort Keogh (Miles City, MT) or for sale. Semen was collected by electroejaculation when bulls were a...
Nonlinear mixed models were used to describe longitudinal scrotal circumference (SC) measurements of Nellore bulls. Models comparisons were based on Akaike's information criterion, Bayesian information criterion, error sum of squares, adjusted R2 and percentage of convergence. Sequentially, the best model was used to compare the SC growth curve in bulls divergently classified according to SC at...
The reproductive performance of bulls has a high impact on the beef cattle industry. Scrotal circumference (SC) is the most recorded reproductive trait in beef herds, and is used as a major selection criterion to improve precocity and fertility. The characterization of genomic regions affecting SC can contribute to the identification of diagnostic markers for reproductive performance and uncove...
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